Watch case



FIG. 1 is a front plan view of a watch case showing my new design;

FIG. 2 is a back plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a bottom elevational view thereof;

FIG. 6 is a top elevational view thereof; and,

FIG. 7 is a front, right side perspective view thereof.

The broken lines in the drawing figures depict unclaimed subject matter that forms no part of the claimed design. 

CLAIM The ornamental design for a watch case, as shown and described. 